2nd world seed conference - international seed testing ... · prosopis juliflora has wide...
TRANSCRIPT
Rome, 10 September 2009
M.S. Swaminathan, FRS
UNESCO Chair in Ecotechnology
Chairman, M S Swaminathan Research Foundation
Plant Breeding for an Ever-green Revolution and for
Meeting the Challenge of Feeding a Growing
Population in an Era of Climate Change
2nd World Seed Conference
From Teosinte to Maize
Beginning of the Green Revolution
Tian F. et.al. PNAS;2009;106:9979-9986
Impact of
Selection and
breeding
Daruma
(Japanese semi-dwarf) X
Fultz
(U.S. winter wheat, high yield)
Fultz-Daruma
(semi-dwarf, high yield)
Locals
(adapted to
U.S. Northwest)
X
X Turkey Red
(U.S. winter, high yield)
Norin 10
(semi-dwarf, winter, high yield)
(Dr Gonziro Inazuka in 1935)
Gaines
(semi-dwarf, winter,
U.S. adpted)
X Local Strains
New Wheats
(semi-dwarf, high yield, adaptable,
rust-resistant, fast-maturing,spring)
Genesis of Wheat Revolution
(Land and Forest Saving Agriculture)
Green Revolution Symphony (1968)
o Technology
o Services
o Public Policies
o Farmers’ enthusiasm
Indian farmers achieved as much progress in wheat production in four years (1964–68), as during the preceding 4000 years.
Major Components
Assured and remunerative market is the prime
mover of farmers’ enthusiasm
Need for an Ever-green Revolution
About 80% of food production comes from farmers with
small holdings. For them, Agriculture is the backbone of the
livelihood security system Hence, higher productivity per
units of arable land and irrigation water is essential to
enhance marketable surplus and thereby of cash income.
This should however be achieved without harm to the
ecological foundations essential for sustainable agriculture.
The green revolution should become an ever-green
revolution leading to an enhancement in productivity in
perpetuity without ecological harm
Swaminathan, 1982
From Green to an Ever-green Revolution
Theme for the 50th
Anniversary Meeting of the
Crop Science Society of
America
Green Revolution : Commodity-
centred increase in productivity
Change In plant architecture, and
harvest index
Change in the physiological
rhythm-insensitive to
photoperiodism
Lodging resistance
Evergreen Revolution : increasing
productivity in perpetuity without
associated ecological harm
Organic agriculture : cultivation without
any use of chemical inputs like mineral
fertilizers and chemical pesticides
Green Agriculture : conservation
farming with the help of integrated pest
management, integrated nutrient
supply and integrated natural resource
management
If farm ecology and economics go wrong, nothing else will go right
From Green to an Ever-green Revolution
Pathways
Organic
Farming
1) Soil Health
2) Water Quality
3) Plant Health
5) Animal Health
• Vermiculture
• Bio-fertilisers
• Stem nodulating
green manure
crops
• Bioremediation
• Genetic Resistance
• Biopesticides
• Vaccines
• High quality
feeds and fodder
6) Environment
• Biomonitoring through
Bio-indicators
• Higher Carbon
Sequestration
4) Post-harvest
Technology
• New strains with
improved keeping,
processing and
transport qualities
IFOAM : Genetic Engineering is excluded in organic agriculture
Biotechnology and Organic Agriculture
Conservation Agriculture with Faidherbia albida – Pathway to
Sustainable Maize Production in Central and Southern Africa
Faidherbia is
indigenous in
many African
countries
60 years of research shows on each hectare, mature trees
supply the equivalent of 300kg of complete fertilizer and 250kg
of lime. This can sustain a maize yield of 4 tons/ha
Climate Change: L’Aquilla G 8 Summit (July 2009)
Implications of Agreement to permit rise in Mean Temperature by 2 deg C
Risks rise rapidly with temperature. Once temperature
increase rises about 2 deg C, upto 4 billion people could
be experiencing growing water shortages. Agriculture
could cease to be viable in parts of the world, particularly in
the tropics, and millions more people will be at risk of
hunger. Above 2 deg C, the risk of a disintegration of the
West Antarctic ice sheet rises significantly, as does the
greater danger of ‘tipping points’ for soil carbon release
and the collapse of the amazon rainforest.
Impact of Higher Temperature on Crop Yield
Projections for India
o Increase in temperature by 2 deg C, rice yields decrease
by 0.75 t ha-1
o Increase in winter temperature by 0.5 deg C, wheat
yields decrease by 0.45 t ha-1
o CO2 fertilization effects not to offset the negative impacts
of high temperature
o Climate change over 2010-39 reduces major crop yields
by 4.5 to 9%
o Long-run (2070-99) impacts could be dramatic by
reducing yields by 25% or more in the absence of
adaptation measures
Neglected Crops: Genes for
Coping with Climate Change
o Time-Tested production and income
stability under marginal and high-risk
farming
o Many crops are nutritionally rich to
redress ‘hidden hunger’
o Neglect leading to loss of genetic
diversity and associated traditional
knowledge
o Opportunity to enhance sustainable
income, food and nutritional security
Lathyrism – a neurological disease of humans and domestic animals
characterized by spastic paralysis. This is attributed to the
neurotoxin beta-oxalyl-L-alpha, beta-diaminopropionic acid (ODAP)
Drought tolerant Lathyrus and Lathyrism
Somaclonal Variation in Lathyrus sativus
Low neuro-
toxin
varieties (-
N-oxalyl
diamino
propionic
acid (ODAP)
Deepwater (floating) rice has
three special adaptations:
i. ability to elongate with
the rise of water levels;
ii. develop nodal tillers and
roots from the upper
nodes in the water
iii. the upward bending of
the terminal part of the
plant called 'kneeing'
that keeps the
reproductive parts
above the water as
flood water subsides.
Rice – Anchor of Food Security in an era of global warming
Facing the challenge of Floods
True Potato Seed
Answer to the challenge of producing disease free planting
material as a result of rise in temperature
Sustaining the Potato Revolution
Field trial of a transgenic rice strain with
Superoxide dismutase gene from Avicennia marina
The loss of every species and gene limits our
options for the future
Prosopis juliflora has wide
adaptation to water stress
and drought conditions
Used as source of drought
tolerant genesControl 36 days of water
withdrawal
Genetic Shield against adverse changes in precipitation
Drought tolerant genes from Prosopis juliflora
Nucleotide sequences of 1467 ESTs from the cDNA library
of drought tolerant plant Prosopis juliflora have been
deposited in the NCBI EST database.
Control Treated
Potential Drought Tolerant
Geneso Glutathione-s-transferase
o RAB7D
o Ascorbate peroxidase
o Lipid Transfer protein
o Pottasium transporter (HAK1)
o Transcription factors (Myb,
ZFP - Zinc Finger Protein)
o Dehydrin
India Important Commercial crop
40 lakh farmers
Livelihood of 600 lakh people
Raw material for 1800 mills
• 40 lakh Handlooms
• 70 lakh Power looms
Textile Industry contributes
• 4% of gross domestic product
• 14% of the total Industrial product
• 20% of total work force
• 17% share of country’s export earning
• 12% of world textile production
• Employment to 300 lakh people
• Second largest provider of employment
• Export revenue about Rs. 70000/-crore
Cotton & Textile Economy of India
Transgenic High Iron Rice with Ferritin Gene
from Mangrove
(a) (b)
(c) (d)
Transverse section of matured
nontransformed control (a, c) and
transgenic rice grains (b, d), blue
staining indicates the presence of iron.
0
5
10
15
20
25
30
1
Series1
Series2
Series3
Series4
Series5
Series6
Series7
Series8
Series9
Series10
Series11
Series12
Series13
Series14Iron content of control and
transgenic rice seeds at T5
homozygous line
31. Parent, 2. Am SOD, 3. Ferritin (With respect to respective parents)
Introgression of Transgene to Indica Varieties
ADT 43IR 64
21
White Ponni IR 20
1
1 1 2
2 23
3
3
2
1
3
CGIAR Biofortification Challenge Program
Crop Nutrient Countries of first
release
Release Year
Bean Iron (Zinc) D R Congo, Rwanda 2010
Casava Provitamin A D R Congo, Rwanda 2011-12
Maize Provitamin A Zambia 2011-12
Pearl Millet Iron (Zinc) India 2011
Rice Zinc (Iron) Bangladesh, India 2012-13
Sweet Potato Provitamin A Uganda, Mozambique 2007
Wheat Zinc (Iron) India, Pakistan 2012-13
National Biotechnology Regulatory Authority
The bottom line of our national
agricultural biotechnology policy should
be the economic well being of farm
families, food security of the nation,
health security of the consumer,
biosecurity of agriculture and health,
protection of the environment and the
security of national and international
trade in farm commodities”
(M S Swaminathan Panel 2004)
Gene Banks for a Warming Planet
Prof M S Swaminathan, Editorial, Science Vol. 325, 31 July 2009
Community Gene & Seed Banks
National Gene Bank
Svalbard –
Global Seed Vault
Conservation continuum
Gene Bank Seed Bank Water BankGrain Bank
Conservation - Cultivation – Consumption - Commerce
Enhancing the Coping Capacity of Local Communities
Local level Food and Water Security