Exhibit A

                          TERMINATION OPTION AGREEMENT

                  This TERMINATION OPTION AGREEMENT (this "Agreement"),  is made
and entered into as of May 8, 1998, by and among  Monsanto  Company,  a Delaware
corporation  (the  "Grantee"),  and  Delta  and Pine Land  Company,  a  Delaware
corporation (the "Grantor").

                  WHEREAS,  concurrently with the execution and delivery of this
Agreement,  the Grantor and the Grantee are entering  into an Agreement and Plan
of Merger, dated as of the date hereof (the "Merger Agreement"); and

                  WHEREAS, as a condition to the Grantee's  willingness to enter
into the Merger Agreement, the Grantee has requested that the Grantor agree, and
in order to induce the Grantee to enter into the Merger  Agreement,  the Grantor
has agreed,  to grant to the Grantee an option with respect to certain shares of
the  Grantor's  common  stock,  $0.10 par value per share (the  "Grantor  Common
Stock"), on the terms and subject to the conditions set forth herein.

                  NOW,  THEREFORE,  in consideration of the foregoing and of the
mutual covenants and agreements set forth herein and in the Merger Agreement and
for other good and valuable consideration, the receipt and adequacy of which are
hereby acknowledged, the parties hereto hereby agree as follows:

         1.  Grant of  Option.  The  Grantor  hereby  grants to the  Grantee  an
irrevocable  option (the "Stock  Option") to purchase up to 7,614,659  shares of
Grantor Common Stock, or such other number of shares of the Grantor Common Stock
as equals 19.9% of the issued and outstanding shares of the Grantor Common Stock
at the time of exercise of the Stock Option, in the manner set forth below, at a
price of $46.25 per share (the "Exercise Price"),  payable in cash in accordance
with Section 4 hereof.  Capitalized  terms used and not otherwise defined herein
shall have the meanings set forth in the Merger Agreement.







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         2.  Exercise  of  Option.  The Stock  Option  may be  exercised  by the
Grantee,  in whole or in part,  at any time or from  time to time  after (a) any
corporation,  partnership,  person, other entity or group (as defined in Section
13(d)(3) of the Exchange Act) other than Grantor or any of its  subsidiaries  or
affiliates or any entities  included in the  "Institutional  Investor Group" set
forth in the Company  Disclosure Letter (each a "Third Party") shall have become
the beneficial  owner of more than 15% of the  outstanding  Grantor Common Stock
(either  on a primary  or a fully  diluted  basis);  (b) any Third  Party  shall
commence a tender offer for at least 15% of the outstanding Grantor Common Stock
(either on a primary or a fully diluted  basis);  or (c) Grantor enters into, or
announces  that it has  agreed to enter  into,  an  agreement  in  respect of an
Acquisition  Transaction.  The  Stock  Option  shall be  exercisable  until  the
earliest to occur of (i) the closing of any Acquisition Transaction with a Third
Party; (ii) any Third Party acquiring  beneficial  ownership of more than 50% of
the  outstanding  Grantor  Common  Stock;  (iii)  ninety  (90)  days  after  the
occurrence of any event set forth in the foregoing  clauses (a), (b) and (c); or
(iv) ninety (90) days after the date of termination of the Merger Agreement.  In
the event the Grantee  wishes to exercise the Stock  Option,  the Grantee  shall
deliver to the Grantor a written  notice (an "Exercise  Notice")  specifying the
total number of shares of the Grantor  Common Stock it wishes to purchase.  Each
closing of a purchase  of shares of Grantor  Common  Stock (a  "Closing")  shall
occur  at a place,  on a date and at a time  designated  by the  Grantee  in any
Exercise  Notice  delivered at least two (2) business  days prior to the date of
such Closing.

         3. Conditions to Closing. The obligation of the Grantor to issue shares
of the  Grantor  Common  Stock  to  the  Grantee  hereunder  is  subject  to the
conditions  (which,  other than the conditions  described in clauses (a) and (b)
below, may be waived by the Grantor in its sole discretion) that (a) all waiting
periods,  if any,  under the HSR Act applicable to the issuance of shares of the
Grantor Common Stock hereunder shall have expired or have been  terminated,  and
all  consents,   approvals,   order  or   authorization   of,  or  registration,
declarations or filings with, any federal administrative agency or commission or
other federal  governmental  authority or  instrumentality,  if any, required in
connection  with the issuance of shares of the Grantor  Common  Stock  hereunder
shall have been  obtained  or made,  as the case may be; (b) no  preliminary  or
permanent  injunction  or other  order by any  court of  competent  jurisdiction
prohibiting or otherwise  restraining such issuance shall be in effect;  and (c)
such  shares  shall  have been  approved  for  listing  on the NYSE,  subject to
official notice of issuance.

         4. Closing. At any Closing, (a) the Grantor will deliver to the Grantee
a single certificate in definitive form representing the number of shares of the
Grantor  Common Stock  designated  by the Grantee in its Exercise  Notice,  such
certificate  to be  registered  in the name of the Grantee,  or a nominee of the
Grantee designated by the Grantee in the Exercise Notice, and to bear the legend
set forth in Section 9 hereof,  and (b) the Grantee  will deliver to the Grantor
the  aggregate  Exercise  Price for the shares of the  Grantor  Common  Stock so
designated  and being  purchased at such Closing by wire transfer of immediately
available funds.

         5.  Representations,  Warranties  and  Covenants  of the  Grantor.  The
Grantor  represents  and  warrants  to the  Grantee  that (a) the  Grantor  is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Delaware and has the corporate power and authority to enter into
this Agreement and to carry out its obligations hereunder, (b) the execution and
delivery of this Agreement by the Grantor and the consummation by the Grantor of
the transactions  contemplated hereby have been duly authorized by all necessary
corporate  action on the part of the Grantor and no other corporate  proceedings
on the part of the Grantor are necessary to authorize  this  Agreement or any of
the transactions  contemplated hereby, (c) this Agreement has been duly executed
and delivered by the Grantor and  constitutes a valid and binding  obligation of
the  Grantor,  and,  assuming  this  Agreement  constitutes  a valid and binding
obligation of the Grantee, is enforceable against the Grantor in accordance with
its  terms,   subject  to   bankruptcy,   insolvency,   fraudulent   conveyance,
reorganization, moratorium and similar laws of general applicability relating to
or affecting creditors' rights and to general equity principles, (d) the Grantor
has taken all necessary  corporate  action to authorize and reserve for issuance
and to permit it to issue,  upon exercise of the Stock Option,  and at all times
from the date hereof  through the  expiration  of the Stock  Option will have so
reserved,  7,614,659 unissued shares of Grantor Common Stock, all of which, upon
their issuance and delivery in accordance with the terms of this Agreement, will
be validly  issued,  fully paid and  nonassessable,  (e) upon  delivery  of such
shares of the Grantor  Common  Stock to the Grantee  upon  exercise of the Stock
Option,  the Grantee  will acquire  valid title to all of such shares,  free and
clear of any and all  Liens of any  nature  whatsoever,  (f) the  execution  and
delivery of this Agreement by the Grantor does not, and the  performance of this
Agreement by the Grantor will not, (1) violate the certificate of  incorporation
or bylaws of the  Grantor,  (2)  conflict  with or violate  any  statute,  rule,
regulation,  order,  judgment or decree applicable to the Grantor or by which it
or any of its assets or  properties  is bound or affected,  or (3) result in any
breach or violation of or constitute a default (or an event which with notice or
lapse of time or both would become a default)  under, or give rise to any rights
or termination,  amendment,  acceleration  or cancellation  of, or result in the
creation of any Lien on any of the  property  or assets of the Grantor  pursuant
to, any note, bond, mortgage, indenture, contract, agreement, lease, license, or
other  instrument or obligation to which the Grantor or any of its  Subsidiaries
is a party or by which the Grantor or any of its assets or  properties  is bound
or affected  (except,  in the case of clauses (2) and (3) above, for violations,
breaches or defaults which would not,  individually or in the aggregate,  have a
Material  Adverse  Effect on the  Grantor  and except  with  respect to any item
listed in the Company Disclosure Letter),  and (g) the execution and delivery of
this Agreement by the Grantor does not, and the performance of this Agreement by
the Grantor will not, require any consent, approval, authorization or permit of,
or filing with or  notification  to, any  governmental  or regulatory  authority
except for pre-merger  notification  requirements of the HSR Act and except with
respect to any item listed in the Company  Disclosure Letter. The Grantee agrees
that it shall not knowingly  (after due inquiry)  sell to any person  (including
any Group) and its affiliates  (other than the Grantor or any person approved by
the Grantor) in any private placement Restricted Shares (as defined in Section 7
below)  representing  more than 2% of the outstanding  shares of common stock of
the Grantor on a fully diluted basis.

         6.   Representations  and  Warranties  of  the  Grantee.   The  Grantee
represents  and  warrants to the Grantor  that (a) the Grantee is a  corporation
duly  organized,  validly  existing and in good  standing  under the laws of the
State of Delaware and has the  corporate  power and authority to enter into this
Agreement  and to carry out its  obligations  hereunder,  (b) the  execution and
delivery of this Agreement by the Grantee and the consummation by the Grantee of
the transactions  contemplated hereby have been duly authorized by all necessary
corporate  action on the part of the Grantee and no other corporate  proceedings
on the part of the Grantee are necessary to authorize  this  Agreement or any of
the transactions  contemplated hereby, (c) this Agreement has been duly executed
and delivered by the Grantee and  constitutes a valid and binding  obligation to
the Grantee in  accordance  with its terms  subject to  bankruptcy,  insolvency,
fraudulent  conveyance,  reorganization,  moratorium and similar laws of general
applicability  relating to or affecting  creditors' rights and to general equity
principles, (d) the execution and delivery of this Agreement by the Grantee does
not, and the  performance  of this Agreement by the Grantee will not (1) violate
the certificate of incorporation or bylaws of the Grantee,  (2) conflict with or
violate any statute, rule,  regulation,  order, judgment or decree applicable to
the  Grantee  or by  which it or any of its  properties  or  assets  is bound or
affected  or (3) result in any breach of or  constitute  a default  (or an event
which with  notice or lapse of time or both would  become a default)  under,  or
give rise to any rights of termination,  amendment, acceleration or cancellation
of, or result in the  creation of a Lien on any of the property or assets of the
Grantee pursuant to, any note, bond, mortgage,  indenture,  contract, agreement,
lease,  license,  or other  instrument  or  obligation to which the Grantee is a
party or by which the  Grantee  or any of its  properties  or assets is bound or
affected  (except,  in the case of clauses  (2) and (3) above,  for  violations,
breaches, or defaults which would not, individually or in the aggregate,  have a
material adverse effect on the Grantee),  (e) the execution and delivery of this
Agreement by the Grantee does not, and the  performance of this Agreement by the
Grantee will not, require any consent, approval,  authorization or permit of, or
filing with or notification to, any governmental or regulatory authority, except
for pre-merger  notification  requirements  of the HSR Act and (f) any shares of
the Grantor Common Stock acquired upon exercise of the Stock Option will be, and
the Stock  Option is being,  acquired by the Grantee for its own account and not
with a view to the public  distribution  or resale  thereof in any manner  which
would be in violation of applicable United States securities laws.


         7.  Registration  Rights. In the event that the Grantee shall desire to
sell any of the shares of the Grantor  Common  Stock  purchased  pursuant to the
Stock Option within two (2) years after such purchase, and such sale requires in
the  opinion  of counsel  to the  Grantor,  which  opinion  shall be  reasonably
satisfactory  to the Grantee and its counsel,  registration of such shares under
the   Securities   Act  of  1933,  the  Grantee  may,  by  written  notice  (the
"Registration Notice") to the Grantor (the "Registrant"), request the Registrant
to register  under the  Securities  Act all or any part of the shares  purchased
pursuant to the Stock Option  ("Restricted  Shares")  beneficially  owned by the
Grantee (the "Registrable  Securities")  pursuant to a bona fide firm commitment
underwritten  public  offering in which the Grantee and the  underwriters  shall
effect as wide a distribution  of such  Registrable  Securities as is reasonably
practicable  and shall use their best  efforts to prevent any person  (including
any Group) and its affiliates from purchasing  through such offering  Restricted
Shares  representing  more than 2% of the outstanding  shares of common stock of
the  Registrant  on  a  fully  diluted  basis  (a  "Permitted  Offering").   The
Registration Notice shall include a certificate  executed by the Grantee and its
proposed managing underwriter,  which underwriter shall be an investment banking
firm of nationally recognized standing reasonably acceptable to the Grantor (the
"Manager"),  stating that (a) it has a good faith intention to commence promptly
a Permitted  Offering and (b) the Manager in good faith believes that,  based on
the then prevailing market  conditions,  it will be able to sell the Registrable
Securities at a per share price to be specified in such Registration Notice (the
"Fair  Market  Value").  The  Registrant  (and/or any person  designated  by the
Registrant)  shall  thereupon  have the option,  exercisable  by written  notice
delivered to the Grantee  within ten (10) business days after the receipt of the
Registration  Notice,  irrevocably  to agree to purchase  all or any part of the
Registrable  Securities  for cash at a price (the "Option  Price")  equal to the
product  of (a) the number of  Registrable  Securities  and (b) the Fair  Market
Value  of  such  Registrable  Securities.   Any  such  purchase  of  Registrable
Securities by the Registrant  hereunder shall take place at a closing to be held
at the  principal  executive  offices of the  Registrant  or its  counsel at any
reasonable  date and time  designated by the Registrant and its designee in such
notice  within  twenty (20)  business  days after  delivery of such notice.  Any
payment for the shares to be purchased  shall be made by delivery at the time of
such  closing  of the  Option  Price  in  immediately  available  funds.  If the
Registrant does not elect to exercise its option pursuant to this Section 7 with
respect to all Registrable  Securities designated in the Registration Notice, it
shall  use  its  best  efforts  to  effect,  as  promptly  as  practicable,  the
registration under the Securities Act of the unpurchased Registrable Securities;
provided,  however,  that (a) the Grantee  shall not be entitled to more than an
aggregate  of two  effective  registration  statements  hereunder  and  (b)  the
Registrant will not be required to file any such  registration  statement during
any  period of time (not to exceed 90 days  after  such  request  in the case of
clause (ii) below or 120 days in the case of clauses  (i) and (iii)  below) when
(i) the Registrant is in possession of material non-public  information which it
reasonably  believes  would be  detrimental to be disclosed at such time and, in
the judgment of the Board of Directors of the Registrant, such information would
have to be disclosed if a registration  statement were filed at that time;  (ii)
the Registrant is required under the Securities Act to include audited financial
statements  for any period in such  registration  statement  and such  financial
statements are not yet available for inclusion in such  registration  statement;
or (iii)  the  Registrant  determines,  in its  reasonable  judgment,  that such
registration  would interfere with any financing,  acquisition or other material
transaction  involving the Registrant or any of its affiliates.  If consummation
of the sale of any Registrable  Securities pursuant to a registration  hereunder
does not occur  within  120 days after the  filing  with the SEC of the  initial
registration  statement with respect  thereto,  the provisions of this Section 7
shall again be applicable to any proposed registration;  provided, however, that
the  Grantee  shall not be  entitled  to  request  more  than two  registrations
pursuant to this  Section 7 to be  qualified  for sale under the  securities  or
blue-sky laws of such  jurisdictions  as the Grantee may reasonably  request and
shall  continue  such   registration   or   qualification   in  effect  in  such
jurisdiction;  provided,  further,  that the Registrant shall not be required to
qualify to do  business  in, or consent  to general  service of process  in, any
jurisdiction by reason of this provision.  The registration  rights set forth in
this Section 7 are subject to the  condition  that the Grantee shall provide the
Registrant  with such  information  with  respect to the  Grantee's  Registrable
Securities,  the plans for the distribution  thereof, and such other information
with  respect to the Grantee as, in the  reasonable  judgment of counsel for the
Registrant,   is  necessary  to  enable  the   Registrant  to  include  in  such
registration  statement all material facts required to be disclosed with respect
to a registration thereunder. A registration effected under this Section 7 shall
be effected at the Registrant's expense,  except for underwriting  discounts and
commissions  and the fees and the  expenses of counsel to the  Grantee,  and the
Registrant  shall  provide to the  underwriters  such  documentation  (including
certificates,  opinions of counsel and "comfort"  letters from  auditors) as are
customary in connection with underwritten  public offerings as such underwriters
may reasonably  require.  In connection with any such registration,  the parties
agree (a) to indemnify each other and the  underwriters in the customary  manner
and (b) to enter into an underwriting  agreement in form and substance customary
to  transactions  of this  type  with the  Manager  and the  other  underwriters
participating in such offering.

         8.  Adjustment  upon  Changes  in  Capitalization.  In the event of any
change in the Grantor Common Stock by reason of stock  dividends,  stock splits,
mergers (other than the Merger),  recapitalizations,  combinations,  exchange of
shares or the like,  the type and number of shares or securities  subject to the
Stock Option, and the Exercise Price per share, shall be adjusted appropriately.

         9. Restrictive  Legends.  Each certificate  representing  shares of the
Grantor Common Stock issued to the Grantee hereunder shall initially be endorsed
with a legend in substantially the following form:

         THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
         UNDER THE SECURITIES  ACT OF 1933, AS AMENDED,  AND MAY BE REOFFERED OR
         SOLD ONLY IF SO  REGISTERED OR IF AN EXEMPTION  FROM SUCH  REGISTRATION
         AND APPLICABLE STATE SECURITIES LAWS IS AVAILABLE.  SUCH SECURITIES ARE
         ALSO SUBJECT TO ADDITIONAL RESTRICTIONS ON TRANSFER AS SET FORTH IN THE
         TERMINATION OPTION AGREEMENT, DATED MAY 8, 1998, A COPY OF WHICH MAY BE
         OBTAINED FROM THE ISSUER HEREOF.

         10. Binding Effect; No Assignment. This Agreement shall be binding upon
and inure to the benefit of the parties hereto and their respective  successors,
and permitted assigns.  Except as expressly provided in this Agreement,  neither
this  Agreement  nor the rights or the  obligations  of either  party hereto are
assignable, except by operation of law, or with the written consent of the other
party.  Nothing contained in this Agreement,  express or implied, is intended to
confer  upon any person  other  than the  parties  hereto  and their  respective
permitted  assigns any rights or remedies of any nature  whatsoever by reason of
this  Agreement.  Any Restricted  Shares sold by a party in compliance  with the
provisions of Section 7 hereof shall, upon consummation of such sale, be free of
the  restrictions  imposed with respect to such shares by this Agreement,  in no
event will any transferee of any Restricted  Shares be entitled to the rights of
the Grantee  hereunder.  Certificates  representing  shares sold in a registered
public  offering  pursuant to Section 7 hereof shall not be required to bear the
legend set forth in Section 9 hereof.

         11. Incorporation by Reference. The provisions of Sections 7.01, 10.01,
10.04,  10.06,  10.07,  10.08 and 10.09 of the Merger Agreement are incorporated
herein by reference,  to be read as though the references  therein to the Merger
Agreement were references to this Agreement.

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                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Agreement to be duly executed by their respective  authorized officers as of the
day and year first above written.


                                            MONSANTO COMPANY



                                     By:      _/s/ Susan D. Berland____________
                                     Name:    _____Susan D. Berland____________
                                     Title:   _Authorized Representative


     
                                          DELTA AND PINE LAND COMPANY



                                     By:      _/s/ Roger D. Malkin_____________
                                     Name:    _____Roger D. Malkin_____________
                                     Title:   _____Chairman____________________